Sharp R-530EK service manual Troubleshooting Guide, When the testing is completed

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R - 5 3 0 E K

R - 530EW

TROUBLESHOOTING GUIDE

Never touch any part in the circuit with your hand or an uninsulated tool while the power supply is connected.

When troubleshooting the microwave oven, it is helpful to follow the Sequence of Operation in performing the checks. Many of the possible causes of trouble will require that a specific test be performed. These tests are given a procedure letter which will be found in the "Test Procedure "section.

IMPORTANT: If the oven becomes inoperative because of a blown monitor fuse, check the monitor switch, relay (RY1) primary interlock relay (RY2), door sensing switch and secondary interlock switch before replacing the monitor fuse. If the monitor fuse is replaced, the monitor switch must also be replaced. Use part FFS-BA016/ KIT as an assembly.

IMPORTANT: Whenever troubleshooting is performed with the power supply cord disconnected. It may in, some cases, be necessary to connect the power supply cord after the outer case has been removed, in this event,

1.Disconnect the power supply cord, and then remove outer case.

2.Open the door and block it open.

3.Discharge high voltage capacitor.

4.Disconnect the leads to the primary of the power transformer.

5.Ensure that the leads remain isolated from other components and oven chassis by using insulation tape.

6.After that procedure, reconnect the power supply cord.

When the testing is completed

1.Disconnect the power supply cord, and then remove outer case.

2.Open the door and block it open.

3.Discharge high voltage capacitor.

4.Reconnect all leads removed from components during testing.

5.Reinstall the outer case (cabinet).

6.Reconnect the power supply cord after the outer case is installed.

7.Run the oven and check all functions.

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Contents Table of Contents Models R 5 3 0 E K R-530EWBefore Servicing When the testing is completed Dont Touch Before ServicingMicrowave Measurement Procedure RequirementsLeakage test Sharp PLAZA, Mahwah Microwave Oven530EK/ R-530EW ForewordSpecification General InformationDescription Grounding InstructionsOven Diagram Touch Control PanelOperation Description of Operating SequenceMicrowave Cooking SequenceFigure O-1. Oven Schematic-Off Condition Description and Function of Components Troubleshooting Guide CK = Check / RE = Replace Test Procedures Procedure Letter Component Test Magnetron Assembly TestMicrowave Output Power Power Transformer TestProcedure Letter Component Test Cavity Temperature Fuse TestMagnetron Temperature Fuse Test High Voltage Rectifier TestSecondary Interlock Switch Test Door Sensing SwitchMonitor Switch Test Primary Interlock System TestTouch Control Panel Assembly Test Before testingBlown Monitor Fuse Test KEY Unit Test Relay Test Compu Defrost TestProcedure Component Test Letter Foil Pattern on the Printed Wiring Board TestTesting Method for AH Sensor AND/OR Control Unit AH Sensor TestChecking the initial sensor cooking condition Water load cooking testChecking Control Unit Sensor Dummy Resistor CircuitTouch Control Panel Assembly LSIIXA098DR Pin No Signal Description Signal synchronized with commercial power source frequencyKey strobe signal Signal coming from touch keyPower source voltage GND0V Internal clock oscillation frequency control input settingCommon data signal COM8 Common data signal COM7Common data signal COM9 Common data signal COM10Absolute Humidity Sensor Circuit Structure of Absolute Humidity SensorTouch Control Panel Servicing KRC243MComponent Replacement and Adjustment Procedure Outer Case RemovalPower Transformer Removal ReinstallationHigh Voltage Rectifier and High Voltage Capacitor Removal Magnetron RemovalPositive Lock Connector NO-CASE Type Removal Control Panel Assembly RemovalOven Lamp and Lamp Socket Removal Turntable Motor RemovalAH Sensor Replacement InstallationCooling FAN Motor Removal RemovalDoor Replacement After adjustment, check the followingRemoval Reinstallation After any service, make sure of the followingInstallation Sealer FilmFigure S-1. Pictorial Diagram High Voltage ComponentsFigure S-2. Power Unit Circuit Circuit OFF CookZD1 SP1 VRBRY2 RY1 RY3 TTMParts List Electric PartsCabinet Parts Control Panel PartsHOW to Order Replacement Parts Door PartsMiscellaneous SCREWS,NUTS and WashersOven and Cabinet Parts Control Panel Parts Door Parts Miscellaneous Packing and Accessories Copyright 2001 by Sharp Corporation ALL Rights Reserved

R-530EK specifications

The Sharp R-530EK is a notable microwave oven that combines functionality with innovation to enhance cooking convenience. With a sleek design and user-friendly interface, this model has earned a place in many kitchens around the globe.

One of the primary features of the Sharp R-530EK is its powerful microwave output. The oven boasts a maximum power of 900 watts, ensuring that food can be heated quickly and evenly. This power level allows users to prepare a variety of meals, from reheating leftovers to cooking dishes from scratch, in significantly less time than traditional cooking methods.

The R-530EK is equipped with a spacious interior, offering 25 liters of capacity. This ample space allows for cooking larger dishes or multiple servings at once. The turntable design ensures even cooking by rotating food during the heating process, further enhancing the microwave's efficiency.

Another standout feature of the Sharp R-530EK is its array of pre-programmed auto-cook menus. These presets simplify cooking by providing specific times and power levels for various types of food, including popcorn, pizzas, and oatmeal. Users can simply select the appropriate setting, and the microwave takes care of the rest, making it ideal for those who may not have extensive cooking experience.

The microwave utilizes advanced inverter technology, a feature that sets it apart from many conventional microwave ovens. Inverter technology allows for continuous and consistent power output, providing more precise temperature control. This means that delicate foods such as seafood or chocolate can be heated without the risk of overcooking or burning, resulting in better texture and flavor.

Additionally, the R-530EK is designed with multiple cooking functions that enhance its versatility. These include defrosting capabilities, grilling options, and even signals indicating the completion of cooking cycles. The easy-to-read digital display and intuitively designed buttons contribute to the overall user experience, making it accessible for individuals of all ages.

Moreover, this microwave oven ensures safety with features such as a child lock, which prevents accidental operation by little hands. The Sharp R-530EK is both an efficient and reliable addition to any kitchen, embodying the perfect blend of cutting-edge technology and practical design to meet the demands of modern cooking. With its impressive range of features and performance capabilities, it stands as a valuable tool for aspiring chefs and busy families alike.